Virginia just strengthened its climate law. Now Dominion is testing the loophole buried inside it.

Virginia's 2020 climate law was written to phase out fossil-fuel generation, with one exception: the State Corporation Commission can waive the rule when grid reliability is at stake. Dominion Energy used that exception in 2024 to win approval for a gas plant in Chesterfield County, roughly one-third the size of the Cumberland proposal. Now the company is back, asking state regulators to use the same waiver for a 3-gigawatt combined-cycle gas plant in Cumberland County, a rural jurisdiction of about 10,000 people on the James River.

The proposed facility, which Dominion calls the Frontier Energy Center, would be larger than any gas plant operating in the United States outside a 4.3-GW complex in Florida. It is designed to run around the clock and recover waste heat, and it is sized to serve load growth in Northern Virginia's data-center alley, the world's largest concentration of data centers.

The Virginia Clean Economy Act, passed in 2020, codified a renewable and zero-carbon generation mandate in Va. Code § 56-585.5 and required existing fossil plants to retire within roughly two decades. The narrow escape valve sits next door in Va. Code § 56-585.1, the cost-effectiveness and reliability waiver Dominion has now invoked twice since 2024.

State legislators tightened the mandate earlier in 2025, expanding requirements for battery storage, community solar, and energy efficiency, even as other states walked back climate targets. The Virginia law held. The Dominion proposal is the first big test of whether strengthening the statute means anything when the regulator who enforces it can carve the statute open on reliability grounds.

The reliability standard is a state judgment about whether the grid can keep the lights on without the proposed plant. Dominion's argument, in the Chesterfield case and the Cumberland filing, is that forecast data-center demand leaves no other option. Critics, including the Thomas Jefferson Institute's refresher on the VCEA and reporting in Bacon's Rebellion on the SCC's reliability modeling fight, have called the underlying load forecasts optimistic. Whether those forecasts are right is the central question before the State Corporation Commission.

The Chesterfield case set the precedent. In 2024, the commission approved a roughly 1-GW gas facility in Chesterfield County under the same reliability waiver, and that case is now docketed at the commission as case 2025-00038. Dominion's legal team points to that approval as the path. Environmental and ratepayer advocates have asked the commission to narrow the waiver's reach, arguing that the existing statute was written to make the next plant harder, not easier.

The Cumberland timeline is slow. Dominion announced the proposal in May 2025. The Cumberland Planning Commission gave first local approval the week of publication. A county Board of Supervisors vote, a state air permit from the Department of Environmental Quality, and a certificate of public convenience and necessity from the State Corporation Commission are still required. Dominion says both state processes could stretch into 2028, with the earliest in-service date in 2033.

Chesterfield was big enough to clear on a contested record. Cumberland, at three times the nameplate, sits in a different tier of regulatory and political scrutiny. If the State Corporation Commission approves the plant under the existing reliability waiver, the 2020 climate law's binding force will hinge on what the commission, not the General Assembly, decides reliability requires.

The next scheduled ruling on the Chesterfield record is the procedural tell. If the commission narrows the waiver in that docket, the Cumberland case inherits a tighter standard. If it lets the Chesterfield approval stand, Dominion will have a 2024 blueprint for a 2033 plant, and Virginia's climate law will have the shape its statute promised only where the regulator agrees.